Les adresses IP débutant par 81.159.54 sont fournies par BTnet UK Regional network, elles appartiennent au CIDR (Classless Inter-Domain Routing) 81.128.0.0/11, le bloc IP comprant les adresses de 81.128.0.0 à 81.159.255.255). Le numéro de système autonome (ASN) est 2856.
| ASN | 2856 |
| IP commençant par | 81.128.0.0 |
| IP se terminant par | 81.159.255.255 |
| Nom ASN | BTnet UK Regional network |
| CDIR | 81.128.0.0/11 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 23/01/2018 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | GB | Royaume-Uni | - | Hawley | 51,3179 | -0,7668 | 2018-01-23 |
| MaxMind | GB | Royaume-Uni | - | Sandhurst | 51,3468 | -0,7866 | 2018-01-23 |
| Whois | GB | - | - | - | -3 | 55 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.159.54.0 | 1369388544 | 0 |
| 81.159.54.1 | 1369388545 | 0 |
| 81.159.54.2 | 1369388546 | 0 |
| 81.159.54.3 | 1369388547 | 0 |
| 81.159.54.4 | 1369388548 | 0 |
| 81.159.54.5 | 1369388549 | 0 |
| 81.159.54.6 | 1369388550 | 0 |
| 81.159.54.7 | 1369388551 | 0 |
| 81.159.54.8 | 1369388552 | 0 |
| 81.159.54.9 | 1369388553 | 0 |
| 81.159.54.10 | 1369388554 | 0 |
| 81.159.54.11 | 1369388555 | 0 |
| 81.159.54.12 | 1369388556 | 0 |
| 81.159.54.13 | 1369388557 | 0 |
| 81.159.54.14 | 1369388558 | 0 |
| 81.159.54.15 | 1369388559 | 0 |
| 81.159.54.16 | 1369388560 | 0 |
| 81.159.54.17 | 1369388561 | 0 |
| 81.159.54.18 | 1369388562 | 0 |
| 81.159.54.19 | 1369388563 | 0 |
| 81.159.54.20 | 1369388564 | 0 |
| 81.159.54.21 | 1369388565 | 0 |
| 81.159.54.22 | 1369388566 | 0 |
| 81.159.54.23 | 1369388567 | 0 |
| 81.159.54.24 | 1369388568 | 0 |
| 81.159.54.25 | 1369388569 | 0 |
| 81.159.54.26 | 1369388570 | 0 |
| 81.159.54.27 | 1369388571 | 0 |
| 81.159.54.28 | 1369388572 | 0 |
| 81.159.54.29 | 1369388573 | 0 |
| 81.159.54.30 | 1369388574 | 0 |
| 81.159.54.31 | 1369388575 | 0 |
| 81.159.54.32 | 1369388576 | 0 |
| 81.159.54.33 | 1369388577 | 0 |
| 81.159.54.34 | 1369388578 | 0 |
| 81.159.54.35 | 1369388579 | 0 |
| 81.159.54.36 | 1369388580 | 0 |
| 81.159.54.37 | 1369388581 | 0 |
| 81.159.54.38 | 1369388582 | 0 |
| 81.159.54.39 | 1369388583 | 0 |
| 81.159.54.40 | 1369388584 | 0 |
| 81.159.54.41 | 1369388585 | 0 |
| 81.159.54.42 | 1369388586 | 0 |
| 81.159.54.43 | 1369388587 | 0 |
| 81.159.54.44 | 1369388588 | 0 |
| 81.159.54.45 | 1369388589 | 0 |
| 81.159.54.46 | 1369388590 | 0 |
| 81.159.54.47 | 1369388591 | 0 |
| 81.159.54.48 | 1369388592 | 0 |
| 81.159.54.49 | 1369388593 | 0 |
| 81.159.54.50 | 1369388594 | 0 |
| 81.159.54.51 | 1369388595 | 0 |
| 81.159.54.52 | 1369388596 | 0 |
| 81.159.54.53 | 1369388597 | 0 |
| 81.159.54.54 | 1369388598 | 0 |
| 81.159.54.55 | 1369388599 | 0 |
| 81.159.54.56 | 1369388600 | 0 |
| 81.159.54.57 | 1369388601 | 0 |
| 81.159.54.58 | 1369388602 | 0 |
| 81.159.54.59 | 1369388603 | 0 |
| 81.159.54.60 | 1369388604 | 0 |
| 81.159.54.61 | 1369388605 | 0 |
| 81.159.54.62 | 1369388606 | 0 |
| 81.159.54.63 | 1369388607 | 0 |
| 81.159.54.64 | 1369388608 | 0 |
| 81.159.54.65 | 1369388609 | 0 |
| 81.159.54.66 | 1369388610 | 0 |
| 81.159.54.67 | 1369388611 | 0 |
| 81.159.54.68 | 1369388612 | 0 |
| 81.159.54.69 | 1369388613 | 0 |
| 81.159.54.70 | 1369388614 | 0 |
| 81.159.54.71 | 1369388615 | 0 |
| 81.159.54.72 | 1369388616 | 0 |
| 81.159.54.73 | 1369388617 | 0 |
| 81.159.54.74 | 1369388618 | 0 |
| 81.159.54.75 | 1369388619 | 0 |
| 81.159.54.76 | 1369388620 | 0 |
| 81.159.54.77 | 1369388621 | 0 |
| 81.159.54.78 | 1369388622 | 0 |
| 81.159.54.79 | 1369388623 | 0 |
| 81.159.54.80 | 1369388624 | 0 |
| 81.159.54.81 | 1369388625 | 0 |
| 81.159.54.82 | 1369388626 | 0 |
| 81.159.54.83 | 1369388627 | 0 |
| 81.159.54.84 | 1369388628 | 0 |
| 81.159.54.85 | 1369388629 | 0 |